panic: ffs_valloc: dup alloc Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *117418 87620 0 0 0x4000000 1K syz-executor 281246 6854 0 0 0x4000000 0 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff8336ef54) at panic+0x1e5 sys/kern/subr_prf.c:198 ffs_inode_alloc(fffffd806fe52cf0,2000,fffffd80097fb6e8,ffff80003c42c250) at ffs_inode_alloc+0x94e ufs_makeinode(2000,fffffd805c228a50,ffff80003c42c468,ffff80003c42c498) at ufs_makeinode+0xcd sys/ufs/ufs/ufs_vnops.c:1732 ufs_mknod(ffff80003c42c310) at ufs_mknod+0x5b sys/ufs/ufs/ufs_vnops.c:167 VOP_MKNOD(fffffd805c228a50,ffff80003c42c468,ffff80003c42c498,ffff80003c42c398) at VOP_MKNOD+0x101 sys/kern/vfs_vops.c:121 domknodat(ffff8000fffe7778,ffffff9c,200000000280,2000,1e5f) at domknodat+0x469 sys/kern/vfs_syscalls.c:1640 syscall(ffff80003c42c630) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c42c630) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb9aeefc56e0, count: 6 https://www.openbsd.org/ddb.html describes the minimum info required in bug reports. Insufficient info makes it difficult to find and fix bugs. ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic *cpu1: ffs_valloc: dup alloc ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff8336ef54) at panic+0x1e5 sys/kern/subr_prf.c:198 ffs_inode_alloc(fffffd806fe52cf0,2000,fffffd80097fb6e8,ffff80003c42c250) at ffs_inode_alloc+0x94e ufs_makeinode(2000,fffffd805c228a50,ffff80003c42c468,ffff80003c42c498) at ufs_makeinode+0xcd sys/ufs/ufs/ufs_vnops.c:1732 ufs_mknod(ffff80003c42c310) at ufs_mknod+0x5b sys/ufs/ufs/ufs_vnops.c:167 VOP_MKNOD(fffffd805c228a50,ffff80003c42c468,ffff80003c42c498,ffff80003c42c398) at VOP_MKNOD+0x101 sys/kern/vfs_vops.c:121 domknodat(ffff8000fffe7778,ffffff9c,200000000280,2000,1e5f) at domknodat+0x469 sys/kern/vfs_syscalls.c:1640 syscall(ffff80003c42c630) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c42c630) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb9aeefc56e0, count: -9 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80003c42bfe0 rbx 0xffff8000299eeddf rdx 0xffff8000014575c0 rcx 0xffff8000fffe7778 rax 0xffff8000299edff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x154ebd4528ff2cfe r11 0x471ffe50163d1bd0 r12 0xffff8000299eebe0 r13 0 r14 0 r15 0x1 rip 0xffffffff81089aa5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c42bfd0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=117418 pid=87620 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=50, usrpri=50, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000fffe4fb8,0xffff8000fffe7cb8 process=0xffff8000393ec4f0 user=0xffff80003c427000, vmspace=0xfffffd806c209200 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 77415 457412 87111 0 2 0 syz-executor 77415 445782 87111 0 2 0x4000000 syz-executor 87620 233613 59312 0 2 0 syz-executor *87620 117418 59312 0 7 0x4000000 syz-executor 31817 321188 48516 0 2 0 syz-executor 31817 31057 48516 0 3 0x4000080 fsleep syz-executor 76169 278322 66240 0 2 0 syz-executor 76169 141577 66240 0 3 0x4000080 fsleep syz-executor 6854 431318 72492 0 2 0 syz-executor 6854 281246 72492 0 7 0x4000000 syz-executor 36971 420724 45009 0 2 0 syz-executor 36971 513139 45009 0 3 0x4000080 fsleep syz-executor 76374 438618 12505 0 3 0x80 nanoslp syz-executor 76374 102732 12505 0 3 0x4000080 kqread syz-executor 76374 36446 12505 0 3 0x4000080 fsleep syz-executor 91017 419741 0 0 3 0x14200 bored sosplice 12505 477085 58837 0 2 0x2 syz-executor 66240 418498 58837 0 3 0x82 nanoslp syz-executor 45009 262694 58837 0 3 0x82 nanoslp syz-executor 59312 154497 58837 0 3 0x82 nanoslp syz-executor 87111 417077 58837 0 3 0x82 nanoslp syz-executor 48516 338682 58837 0 3 0x82 nanoslp syz-executor 86242 23296 58837 0 3 0x2 biowait syz-executor 72492 132748 58837 0 3 0x82 nanoslp syz-executor 58837 486513 74698 0 3 0x82 kqread syz-executor 74698 46786 75876 0 3 0x10008a sigsusp ksh 75876 365053 55780 0 3 0x98 kqread sshd-session 55780 256772 13034 0 3 0x92 kqread sshd-session 329 89839 1 0 3 0x100083 ttyopn getty 13034 2511 1 0 3 0x88 kqread sshd 30511 467854 38744 74 3 0x1100092 bpf pflogd 38744 401126 1 0 3 0x80 sbwait pflogd 90226 101356 39330 73 3 0x1100090 kqread syslogd 39330 173765 1 0 3 0x100082 sbwait syslogd 18957 410292 1 0 3 0x100080 kqread resolvd 65024 332698 80760 77 3 0x100092 kqread dhcpleased 79504 437461 80760 77 3 0x100092 kqread dhcpleased 80760 198273 1 0 3 0x80 kqread dhcpleased 67335 167381 0 0 3 0x14200 bored smr 60714 368780 0 0 2 0x14200 zerothread 61215 219405 0 0 3 0x14200 aiodoned aiodoned 45795 209482 0 0 3 0x14200 syncer update 46639 253067 0 0 3 0x14200 cleaner cleaner 65951 418471 0 0 3 0x14200 reaper reaper 89691 490386 0 0 3 0x14200 pgdaemon pagedaemon 85676 355627 0 0 3 0x14200 bored viomb 38847 17468 0 0 3 0x40014200 acpi0 acpi0 30150 219898 0 0 3 0x40014200 idle1 82644 319493 0 0 3 0x14200 bored softnet1 91544 304364 0 0 3 0x14200 bored softnet0 80408 420884 0 0 3 0x14200 bored systqmp 43301 335990 0 0 3 0x14200 bored systq 97160 364064 0 0 3 0x14200 tmoslp softclockmp 38182 5374 0 0 3 0x40014200 tmoslp softclock 73374 317070 0 0 3 0x40014200 idle0 1 431170 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 87620 (syz-executor) thread 0xffff8000fffe7778 (117418) exclusive rrwlock inode r = 0 (0xfffffd806fe52eb8) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xa3 sys/kern/vfs_vops.c:527 #4 ufs_ihashins+0x4f ufs_ihash sys/ufs/ufs/ufs_ihash.c:-1 [inline] #4 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:159 #5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1232 #6 ffs_inode_alloc+0x279 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_makeinode+0xcd sys/ufs/ufs/ufs_vnops.c:1732 #8 ufs_mknod+0x5b sys/ufs/ufs/ufs_vnops.c:167 #9 VOP_MKNOD+0x101 sys/kern/vfs_vops.c:121 #10 domknodat+0x469 sys/kern/vfs_syscalls.c:1640 #11 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #11 syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 #12 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806fe52d90) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xa3 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vfs_lookup+0x11c sys/kern/vfs_lookup.c:-1 #6 namei+0x7ca sys/kern/vfs_lookup.c:250 #7 domknodat+0xb4 sys/kern/vfs_syscalls.c:1592 #8 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 #9 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff838ae6d8) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 syscall+0xaf4 mi_syscall sys/sys/syscall_mi.h:175 [inline] #1 syscall+0xaf4 sys/arch/amd64/amd64/trap.c:748 #2 Xsyscall+0x128 Process 86242 (syz-executor) thread 0xffff80002a272fa0 (23296) exclusive rrwlock inode r = 0 (0xfffffd807475e118) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xa3 sys/kern/vfs_vops.c:527 #4 ufs_ihashins+0x4f ufs_ihash sys/ufs/ufs/ufs_ihash.c:-1 [inline] #4 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:159 #5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1232 #6 ffs_inode_alloc+0x279 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_mkdir+0xfc sys/ufs/ufs/ufs_vnops.c:1112 #8 VOP_MKDIR+0x101 sys/kern/vfs_vops.c:394 #9 domkdirat+0x179 sys/kern/vfs_syscalls.c:3113 #10 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806c4130d0) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xa3 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vfs_lookup+0x11c sys/kern/vfs_lookup.c:-1 #6 namei+0x7ca sys/kern/vfs_lookup.c:250 #7 domkdirat+0x8b sys/kern/vfs_syscalls.c:3098 #8 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 #9 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10245 11226K 11236K 166960K 11650 0 pcb 18 13K 14K 166960K 105 0 rtable 240 9K 9K 166960K 418 0 pf 37 18K 21K 166960K 76 0 ifaddr 44 7K 7K 166960K 57 0 ifgroup 55 2K 2K 166960K 67 0 sysctl 4 1K 9K 166960K 9 0 counters 68 36K 37K 166960K 82 0 ioctlops 0 0K 4K 166960K 1530 0 iov 0 0K 12K 166960K 14 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1370 86K 87K 166960K 1574 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 8 0 VM map 2 1K 1K 166960K 2 0 sem 10 0K 0K 166960K 13 0 dirhash 12 2K 2K 166960K 15 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 93K 166960K 375 0 sigio 0 0K 0K 166960K 5 0 proc 72 115K 164K 166960K 542 0 subproc 72 4K 4K 166960K 72 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 37 0 in_multi 103 7K 7K 166960K 117 0 ether_multi 1 0K 0K 166960K 4 0 mrt 0 0K 0K 166960K 2 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 235 1049K 1049K 166960K 235 0 exec 0 0K 1K 166960K 400 0 fusefs mount 1 32K 32K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 244 167K 181K 166960K 5468 0 UVM aobj 10 2K 2K 166960K 10 0 pinsyscall 42 84K 104K 166960K 1542 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 20 0 NDP 12 0K 2K 166960K 34 0 temp 47 8648K 8712K 166960K 19027 0 kqueue 15 24K 28K 166960K 65 0 SYN cache 2 16K 16K 166960K 2 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 26 0 0 1 0 1 1 0 8 0 rtpcb 120 57 0 54 1 0 1 1 0 8 0 rtentry 176 125 0 21 6 0 6 6 0 8 0 unpcb 144 155 0 136 2 0 2 2 0 8 0 syncache 336 6 0 6 1 0 1 1 0 8 1 tcpqe 32 2 0 2 1 1 0 1 0 8 0 tcpcb 736 198 0 191 8 1 7 7 0 8 5 arp 136 21 0 3 1 0 1 1 0 8 0 inpcb 328 513 0 502 12 5 7 12 0 8 5 nd6 152 26 0 0 1 0 1 1 0 8 0 pkpcb 40 2 0 2 1 0 1 1 0 8 1 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1192 7 0 7 1 0 1 1 0 8 1 pfstscr 40 2 0 2 1 0 1 1 0 8 1 pffrag 232 3 0 1 1 0 1 1 0 482 0 pffrnode 88 2 0 1 1 0 1 1 0 8 0 pffrent 40 6 0 3 1 0 1 1 0 8 0 pfosfp 40 1428 0 1005 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfanchor 1288 3 0 0 1 0 1 1 0 8 0 pftag 88 1 0 0 1 0 1 1 0 8 0 pfstitem 24 40 0 1 1 0 1 1 0 8 0 pfstkey 128 42 0 3 2 0 2 2 0 8 0 pfstate 384 42 0 3 4 0 4 4 0 8 0 pfrule 1344 25 0 20 2 1 1 2 0 8 0 rttmr 136 1 0 1 1 1 0 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 574 0 107 31 1 30 31 0 8 0 art_table 40 575 0 107 5 0 5 5 0 8 0 art_node 32 125 0 31 1 0 1 1 0 8 0 sysvmsgpl 40 5 0 1 1 0 1 1 0 8 0 semupl 112 2 0 2 2 1 1 1 0 8 1 semapl 112 10 0 2 1 0 1 1 0 8 0 shmpl 112 7 0 0 1 0 1 1 0 8 0 dirhash 1024 19 0 2 3 0 3 3 0 8 0 dino2pl 256 2027 0 516 95 0 95 95 0 8 0 ffsino 296 2027 0 516 117 0 117 117 0 8 0 nchpl 144 2543 0 843 64 0 64 64 0 8 0 rtmask 32 1 0 1 1 0 1 1 0 8 1 vnodes 216 2231 0 0 124 0 124 124 0 8 0 namei 1024 8733 0 8731 2 1 1 2 0 8 0 percpumem 16 56 0 7 1 0 1 1 0 8 0 kstatmem 264 38 0 12 3 0 3 3 0 8 1 acpiwqpl 32 1 0 1 1 0 1 1 1 8 1 scxspl 216 15890 0 15889 10 2 8 8 1 8 7 plimitpl 152 110 0 92 1 0 1 1 0 8 0 sigapl 424 696 0 648 7 1 6 7 0 8 0 knotepl 120 310 0 0 10 0 10 10 0 8 0 kqueuepl 224 102 0 89 2 0 2 2 0 8 1 pipepl 344 141 0 114 3 0 3 3 0 8 0 fdescpl 528 679 0 648 3 0 3 3 0 8 0 filepl 160 3907 0 3685 19 3 16 19 0 8 5 lockfpl 104 82 0 79 1 0 1 1 0 8 0 lockfspl 48 35 0 32 1 0 1 1 0 8 0 sessionpl 144 24 0 15 1 0 1 1 0 8 0 pgrppl 48 32 0 15 1 0 1 1 0 8 0 ucredpl 104 470 0 457 1 0 1 1 0 8 0 zombiepl 144 648 0 648 1 0 1 1 0 8 1 processpl 1232 696 0 648 5 0 5 5 0 8 0 procpl 664 1133 0 1077 6 0 6 6 0 8 0 sosppl 168 3 0 3 2 1 1 1 0 8 1 sockpl 752 797 0 764 17 6 11 17 0 8 6 mcl64k 65536 3 0 0 1 0 1 1 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 113 0 0 15 0 15 15 0 8 0 mcl2k 2048 25 0 0 4 0 4 4 0 8 0 mtagpl 96 2 0 0 1 0 1 1 0 8 0 mbufpl 256 159 0 0 10 0 10 10 0 8 0 bufpl 280 6703 0 566 439 0 439 439 0 8 0 anonpl 32 11718 0 0 95 0 95 95 0 246 0 amapchunkpl 152 17543 0 17052 33 0 33 33 0 158 6 amappl16 200 3096 0 3064 26 11 15 24 0 8 8 amappl15 192 20 0 20 1 1 0 1 0 8 0 amappl14 184 10 0 10 1 1 0 1 0 8 0 amappl13 176 433 0 432 1 0 1 1 0 8 0 amappl12 168 1056 0 1014 3 0 3 3 0 8 0 amappl11 160 90 0 90 1 1 0 1 0 8 0 amappl10 152 51 0 37 1 0 1 1 0 8 0 amappl9 144 242 0 242 1 1 0 1 0 8 0 amappl8 136 39 0 36 1 0 1 1 0 8 0 amappl7 128 85 0 84 1 0 1 1 0 8 0 amappl6 120 277 0 264 1 0 1 1 0 8 0 amappl5 112 82 0 71 1 0 1 1 0 8 0 amappl4 104 440 0 410 1 0 1 1 0 8 0 amappl3 96 2775 0 2684 4 1 3 3 0 8 0 amappl2 88 804 0 728 2 0 2 2 0 8 0 amappl1 80 10736 0 10144 15 1 14 15 0 8 0 amappl 88 4664 0 4499 5 0 5 5 0 92 0 uvmvnodes 80 2231 0 0 46 0 46 46 0 8 0 dma32768 32768 1 0 1 1 0 1 1 0 8 1 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma256 256 6 0 6 1 1 0 1 0 8 0 dma128 128 253 0 253 1 1 0 1 0 8 0 dma64 64 7 0 7 2 1 1 1 0 8 1 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 72 9 0 0 1 0 1 1 0 8 0 uaddrrnd 24 679 0 648 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 679 0 648 1 0 1 1 0 8 0 vmmpekpl 168 7397 0 7362 3 0 3 3 0 8 0 vmmpepl 168 51999 0 50090 105 0 105 105 0 357 11 vmsppl 488 678 0 648 5 1 4 5 0 8 0 rwobjpl 80 20004 0 16842 70 0 70 70 0 8 0 pdppl 4096 1366 0 1296 106 34 72 86 0 8 2 pvpl 32 20296 0 0 164 0 164 164 0 265 0 pmappl 256 678 0 648 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 286 0 39 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff83798ff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff838ae4d0) at __mp_lock+0x190 __mp_lock_spin sys/kern/kern_lock.c:135 [inline] __mp_lock(ffffffff838ae4d0) at __mp_lock+0x190 sys/kern/kern_lock.c:165 intr_handler(ffff80003ac14b70,ffff80000007aa80) at intr_handler+0xe9 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __mp_lock(ffffffff838ae4d0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff838ae4d0) at __mp_lock+0x192 sys/kern/kern_lock.c:165 vn_write(fffffd806bfcb2c0,ffff80003ac14da8,0) at vn_write+0x4e sys/kern/vfs_vnops.c:393 dofilewritev(ffff8000fffe4a88,c8,ffff80003ac14da8,0,ffff80003ac14e60) at dofilewritev+0x242 sys/kern/sys_generic.c:380 sys_write(ffff8000fffe4a88,ffff80003ac14f10,ffff80003ac14e60) at sys_write+0xa2 sys/kern/sys_generic.c:300 syscall(ffff80003ac14f10) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003ac14f10) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x565d8e96f50, count: 3 ddb{0}> trace x86_ipi_db(ffffffff83798ff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff838ae4d0) at __mp_lock+0x190 __mp_lock_spin sys/kern/kern_lock.c:135 [inline] __mp_lock(ffffffff838ae4d0) at __mp_lock+0x190 sys/kern/kern_lock.c:165 intr_handler(ffff80003ac14b70,ffff80000007aa80) at intr_handler+0xe9 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __mp_lock(ffffffff838ae4d0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff838ae4d0) at __mp_lock+0x192 sys/kern/kern_lock.c:165 vn_write(fffffd806bfcb2c0,ffff80003ac14da8,0) at vn_write+0x4e sys/kern/vfs_vnops.c:393 dofilewritev(ffff8000fffe4a88,c8,ffff80003ac14da8,0,ffff80003ac14e60) at dofilewritev+0x242 sys/kern/sys_generic.c:380 sys_write(ffff8000fffe4a88,ffff80003ac14f10,ffff80003ac14e60) at sys_write+0xa2 sys/kern/sys_generic.c:300 syscall(ffff80003ac14f10) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003ac14f10) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x565d8e96f50, count: -12 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x25: addq $0x8,%rsp db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff8336ef54) at panic+0x1e5 sys/kern/subr_prf.c:198 ffs_inode_alloc(fffffd806fe52cf0,2000,fffffd80097fb6e8,ffff80003c42c250) at ffs_inode_alloc+0x94e ufs_makeinode(2000,fffffd805c228a50,ffff80003c42c468,ffff80003c42c498) at ufs_makeinode+0xcd sys/ufs/ufs/ufs_vnops.c:1732 ufs_mknod(ffff80003c42c310) at ufs_mknod+0x5b sys/ufs/ufs/ufs_vnops.c:167 VOP_MKNOD(fffffd805c228a50,ffff80003c42c468,ffff80003c42c498,ffff80003c42c398) at VOP_MKNOD+0x101 sys/kern/vfs_vops.c:121 domknodat(ffff8000fffe7778,ffffff9c,200000000280,2000,1e5f) at domknodat+0x469 sys/kern/vfs_syscalls.c:1640 syscall(ffff80003c42c630) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c42c630) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb9aeefc56e0, count: 6 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff8336ef54) at panic+0x1e5 sys/kern/subr_prf.c:198 ffs_inode_alloc(fffffd806fe52cf0,2000,fffffd80097fb6e8,ffff80003c42c250) at ffs_inode_alloc+0x94e ufs_makeinode(2000,fffffd805c228a50,ffff80003c42c468,ffff80003c42c498) at ufs_makeinode+0xcd sys/ufs/ufs/ufs_vnops.c:1732 ufs_mknod(ffff80003c42c310) at ufs_mknod+0x5b sys/ufs/ufs/ufs_vnops.c:167 VOP_MKNOD(fffffd805c228a50,ffff80003c42c468,ffff80003c42c498,ffff80003c42c398) at VOP_MKNOD+0x101 sys/kern/vfs_vops.c:121 domknodat(ffff8000fffe7778,ffffff9c,200000000280,2000,1e5f) at domknodat+0x469 sys/kern/vfs_syscalls.c:1640 syscall(ffff80003c42c630) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c42c630) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb9aeefc56e0, count: -9